Egg-tester.



W. H. COLLINS.

ses TESTER.

APPUCATION FILED MAY l0, 1916. n 1 1 98, 1 9 1 Patented Sept. 12, 1916.

I TA.

Wl T/VESSES WALTER H. COLLINS, OF SUMMIT, NEW JERSEY.

EGG-TESTER.

Specification of Letters Patent.

Patented Sept. 12, 1916.

Application led May 10, 1916. Serial No. 96,576.

T 0 all whom tf1/Lay conce/ra Be it known that I, lVALTE-n H. COLLINS, a. citizen of the United States, and a resident of Summit, in the county of Union and State of New Jersey, have invented a new and Improved Egg-Tester, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved egg tester, which is simple and durable in construction, cheap to manufacture and arranged to be conveniently shipped from one place to another and to allow of readily assembling the parts and attaching the tester to an ordinary kerosene lamp.

In order -to produce the desired result, use is made of a base having a ring-shaped bottom and a flange rising from the outer edge of the bottom, the latter resting on the chimney supporting ledge of the burner.

shell of the lamp, the said bottom having cut-out portions for the passage of the spring clamps of the burner and used for holding the chimney in place, a cylinder of opaque material fitted onto the said base and provided with an opening opposite the flame of the lamp, and a short testing tube attached to the cylinder and projecting therefrom, the said testing tube being in register with the said opening.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specication, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a front view of the egg tester as applied to an ordinary kerosene lamp; Fig. 2 is a transverse section of the same on the line 2 2 of Fig. 1; Fig. 3 is an enlarged sectional plan view of the same on the line 3-3 of Fig. 2; Fig. 1 is a plan view of the blank for forming the cylinder; Fig. 5 is a plan View of the base; and Fig. 6 is a perspective view of the testing tube.

The egg tester in its general construction consists of a base 10, a cylinder 11 and a testing tube 12 projecting from the cylinder 11. The base 10 consists of a ringshaped bottom 13 provided at its outer edge with an upturned integral flange 14 surrounding the lower portion of the cylinder 11 seated on the bottom 13. The bottom 13 rests on the ledge 15 of a burner shell 16 of an ordinary kerosene lamp 17 and which ledge 15 usually supports the chimney 18 of the lamp. In the present case the chimney 18, however7 rests with its lower end on the bottom 13 of the base 10. The inner margin of the bottom 13 is provided with cutout portions 19 for the passage of the spring clamps 20 of the lamp 17 and used for holding the chimney 18 in place on the lamp.

The cylinder 11 is made of opaque material, preferably of metal bent into cylindrical shape with the'side edges overlap.

ping, as indicated in Fig. 3. One of the side edges of the cylinder 11 is provided with slits 25 through which extend tongues 26 struck up from the other side of the sheet metal and bent over onto the inner surface of the cylinder to fasten the overlapping edges together. Thus by the arrangement described, the cylinder 11 can be shipped to a customer while in the form of a flat piece, which can be readily bent by the customer into cylindrical shape and the edges fastened together by the use of tongues 26, as above described.

The testing tube 12 is in register with an opening 30 formed in the cylinder approximately opposite the flame of the lamp 17, and the inner end of the testing tube 12 is provided with tongues 31 extending through apertures 32 formed in the cylinder 11 adjacent the wall of the opening 30. Thus the testing tube 12 can be readily attached by the customer to the cylinder 11.

In attaching the egg tester to an ordinary lamp, the chimney 18 thereof is temporarily removed to allow of placing the base 10 in position on the ledge 15 of the burner shell 16 and then the chimney 18 is placed in position on the bottom 13 and held in place by the spring clamps 20. The cylinder 11 with the testing tube 12 attached thereto is now placed in position on the base 10 thus inclosing the chimney 18.

By constructing the base 10 and the cylinder 11 in the manner described, the egg tester can be readily attached to the lamp and when the latter is burning and used in a dark room and an egg is held infront of the testing tube 12, the condition of the egg can be readily ascertained by the operator.

It will also be noticed that by the construction described no stray rays of light are liable to disturb the clear vision of the operator, as the base 10 shuts off rays of light in a downward direction and the cylinder 11 shuts off light in a sidewise direction except those that pass through the testing tube 12 used for ascertaining the condition of the egg.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. An egg tester for attachment to an ordinary kerosene lamp, comprising a base having a ring-shaped bottom and a flange rising from the outer edge of the bot-tom, the latter resting on the chimney-supporting ledge of the burner shell, the said bottom having cut-out portions for the passage of the spring clamps of the burner for holding the chimney in place, a cylinder of opaque material tted onto the said base and provided with an opening opposite the flame of the lamp, and a short testing tube attached to the cylinder and projecting therefrom, the tube being in register with the said. opening.

2. An egg tester for attachment to an ordinary kerosene lamp, comprising a base having a ring-shaped bottom and a flange rising from the outer edge of the bottom,

the latter resting on the chimney-supporting ledge of the burner shell, the said bottom having cut-out portions for the passage of the spring clamps of the burner for holding the chimney in place, a cylinder of opaque material fitted onto the said base and provided With an opening opposite the flame of the lamp, the cylinder being made of a piece of sheet material bent into cylindrical form and provided at one side with slits and at the other With integral prongs extending through the slits and bent onto the inner surface of the cylinder to fasten the sides thereof together, the said cylinder being provided with small apertures adjacent the Wall of the said opening, and a short testing tube projecting from the cylinder and in register with the said opening, the-tube being provided With prongs extending through the said apertures and bent onto the inner face of the cylinder to fasten the tube in place on the cylinder.

VALTER H. COLLINS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

